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Trapped Ion Quantum Computing
Advantage of Coherent States in Ring Resonators over Any Quantum Probe Single-Pass Absorption Estimation Strategy
arXiv
Authors: Alexandre Belsley, Euan J. Allen, Animesh Datta, Jonathan C. F. Matthews
Year
2021
Paper ID
40658
Status
Preprint
Abstract Read
~2 min
Abstract Words
71
Citations
N/A
Abstract
Quantum states of light have been shown to enhance precision in absorption estimation over classical strategies. By exploiting interference and resonant enhancement effects, we show that coherent-state probes in all-pass ring resonators can outperform any quantum probe single-pass strategy even when normalized by the mean input photon number. We also find that under optimal conditions coherent-state probes equal the performance of arbitrarily bright pure single-mode squeezed probes in all-pass ring resonators.
Why This Paper Matters
- This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
- It adds a 2021 reference point for readers tracking recent quantum research.
- Quantum states of light have been shown to enhance precision in absorption estimation over classical strategies.
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